Am 15.06.2009, 11:22 Uhr, schrieb Frédéric Bron <frederic.b...@m4x.org>:
To fix your application, call either struct ifconf ifc; ifc.ifc_len = sizeof (struct ifreq) * 32; ifc.ifc_buf = malloc (ifc.ifc_len); if (ioctl (fd, SIOCGIFCONF, &ifc)) /* Resize ifc_buf and retry */ else { struct ifreq *ifr = ifc.ifc_req; struct ifreq ifr2; for (int i = 0; i < ifc.ifc_len; i += sizeof (struct ifreq), ++ifr) if (!ioctl (fd, SIOCGIFADDR, &ifr2)) /* Print result for that interface */ }Thanks, this works half! No need of ifr2, ifr is enough. I saw the name change: 1.5 gives eth0, eth1, eth2, lo and 1.7 gives {821C54BE-...}...
Careful - this isn't portable to newer BSDs, as there ifc_len may exceed sizeof(struct ifreq).
getifaddrs() is probably the more portable solution here. -- Matthias Andree -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
